EVAP Vent Solenoid Control Circuit Malfunction *

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Trouble Ticket Help Requests for DTC P0449

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2007 GMC Yukon Denali 6.2L StallVIN: 1GKFK63837P0449: EVAP Vent Solenoid Control Circuit Malfunction. vehicle will stall as you come to a stop sign. sometimes
will not start for ten minutes. it has stalled one time
while we were test driving the vehicle. without turning the
key off i checked for engine rpm on a scanner and it was
good. the fuel pressure was no...

2005 Chevrolet Avalanche 1500 LT 5.3L Excessive EmissionsVIN: 3GNEK12Z35P0449: EVAP Vent Solenoid Control Circuit Malfunction. Had this Avalanche in back in November had power to vent
solenoid no ground from pcm, wire from pcm to solenoid is
good. Installed reman Delco pcm. Now 1157 bulb lights at
solenoid connector but its dim and will not operate
solenoid. Ground wire at pcm and ven...